We  launch a lot of sweepstakes Tweematics for artists, and some of them are for tickets to concerts or tours. In our Tweematic for global sensation Lady Gaga, we power a sweepstakes for her Australia artRAVE, in which fans can connect on Twitter or Facebook to win tickets to their specific city. It also compiles Twitter posts with the hashtag #artRAVEau into an Australia-shaped collage! You can check it out here: http://www.tweematic.com/GagaRAVEwear/

Main screen
Fans are given the option to upload a photo, post to Facebook or Twitter, and select their preferred city. Australia Twitter collage below.